switch to translit_for_search field

Description

Transliteration and Transliteration permutation search of advanced search is switched to translit_for_search field.

Type of PR This PR is a [improvement].

Tests

1. Search in Transliteration/Transliteration permutation fields of advanced search.
2. Check if the results are not grabbing the occurrences from translations, etc.

Checklist:

• My pull request has a descriptive title (not a vague title like "Update index.md").
• My pull request targets the phoenix/develop branch of the repository.
• My commit messages follow best practices.
• My code follows the established code style of the repository.
• I added tests for the changes I made (if applicable).
• I added or updated documentation (if applicable).
• I tried running the project locally and verified that there are no visible errors.